Saw-guide



(No Model.)

J. B. BRADLEY.

SAW GUIDE. Y

No.\288,768. Paleni'nsd Nov. 20, 1883. n

@MMM/'f f' UNITED STATES PATENT OFFICE.

JOHN B. BRADLEY, OF VANCEBRG, KENTUCKY.

SAW-GUIDE.

SPECIFICATION forming part of `Letters Patent No. 288,768, dated November 20, 1883.

Application led August 14, 1883. (No model.)

To a/Z whomy it may concern.-

Be it known that I, JOHN B. BRADLEY, a citizen of the United States of America, re-

' siding at Vanceburg, in the ,county of Lewis and State of Kentucky, .have invented certain new and useful Improvements in Saw-Guides, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to animprovement in saw-guides, having for its object to enable the ready removal of the saw for sharpening, lubrication, or other purpose; and it consists of two jaws adapted to be adjustedwithrelation to the saw by means of mechanism substantially as hereinafter fully set forth and claimed.

In the accompanying drawings, Figure l is a plan view of my improved saw-guide. Fig. 2 is a side view of the same, and Fig. 3 is a detail view.

In carrying out this invention I employ a suitable case or inclosure, A, which in practice is secured in position on the saw-frame in proximity to the saw, one end of said frame being left open, the purpose of which will presently be seen.

B B are two jaws with Babbitt-metal projecting faces a c, having clamps or teeth c and c, between which the saw revolves and -is guided. These jaws are arranged parallel to each other, thevi'ace of one being disposed opposite to the face of the other, to effect the proper guidance of the saw. The jawB is secured in a reduction of one side of the frame A, its inner end terminating where said reduction begins. It is axture and serves to prevent the ingress of sawdust;

The longitudinal bars J and J serve as a guide for the slide S, to which is secured clamp or tooth cf, the slide S being provided with a female screw for reception of screw b, screw 11 having rigidly secured thereto knob h, and hence by rotating knob h the clamp or tooth of slide S may be impelled forward or withdrawn, and thus adapted to its proper position. Spring e is designed to aid in holding slide S rigidly in position.

The jaw B is pivoted in rear of the inner end of the jaw B at d, and adapted to engage with and be operated by a worm-screw having shaft C, bearing in one end of the vertical wall A of case A, and knob O', whereby the jaw can be readily opened and Iclosed and the saw rigidly secured or released to permit its being taken orf its mandrel for sharpening, lubrication, or other purpose.

F is a brake consisting of rectangular plate g, having knob E, wherein is rigidly secured screw F, which projects through an orice in the center of plate g and is actuated by rotation ofknob E, whereby plate g is caused to bea-r against the worm H of shaft (l, to eiiect the holding of the shaft against movement when the saw-guide is-in use.

Having thus fully described my invention, I

claim and desire to secure by Letters Patent- 1. In a saw-guide, the pivoted jaw B', having a metallic face with a clamp or tooth, the jaw being actuated by a worm-screw secured by brake F', and adapted to operate in conjunction with slide S, which is provided with face a and clamp or tooth a, and actuated by screw b, substantially as shown and described.

2. In a sawguide, the combination of pivoted jaws B. actuated by spring c', wormscrew C, having knob C', slide S, clamp or tooth a, and screw b, secured in knob h, substantially as shown and described.

3. In a saw-guide, the combination7 with the pivoted jaw, operating-screw, or wormshaft, of the brak eplate adapted to have movement in the jaw-case, and operated bya screw and knob, substantially as and for the purpose set forth.

- In testimony whereof I affix my signature in presence of two witnesses.

JNO. B. BRADLEY.

Y Witnesses:

S. L. HULL,

JAMES HINEE. 

